Spotting liars is hard – but our new method is effective and ethical
OPINION: Lie detector tests such as polygraphs, which use an individual’s anxiety levels to indicate the veracity of their statements, have been criticised as ‘theoretically weak’ and unreliable; but new methods which rely on the asymmetry in responses from liars and truth-tellers could be the way forward, as University of Portsmouth Senior Teaching Fellow Cody Porter explains.